thanks - i have it geared with wide ratio M22 auto gearset (2.54 1st) and 4.56 - so it certainly has the benefit of torque multiplication for sure. and it has a 10# flywheel.

I like it idling at 1000 rpm, which is probably a tad low - but rollig out of a stop at 12-1400 is easier than the 30/30 was with 11 to 1. (same gears)

honestly, i can't make full use of this cars power - if you nail the throttle, the tires comes loose at any speed above 3000 rpm. The last time I had it out, i thought i'd wind it up on a freeway entrance ramp.... i eased into it in 1st, and then when it hit 5500 in 2nd, it started floating out on me....

My car had the 140 cam since about 1970, guy installed it and springs with aluminum retainers. Retainers were prone to cracking so its a wonder I have original engine. My car had 4.88s but just took them out. Not much fun on freeway. Mine likes 1000 also. I would think your compression would be a big help. Hakan, Anymore they have decided that nasty idle isn't needed to make horsepower. I had a 383 built with dart products parts and it has a somewhat small roller in it. My 472 hemi has a small roller in it and its making right at 600 horse at 6000 rpm. Just over 10:1 in pump gas. It idles about 900 and is very calm. I have a dyno and exhaust sound video on You tube under bill foos if you want to hear it. Rollers are great with the oil we have now too

god no - its actually a repop manifold - when i was making the video, i said NOS parts - but didn't intend to mislead - however the carbs are new production holley, and the manifold is the a repop with port matched intake etc.

The eye appeal is the main incentive that I see for installing one. From all the original articles I have read it sounds like the x ram was not street friendly, and it was hard to take advantage of the cam and x ram setup. I have a god article from Car Life ( August of 69), where they tested both and came away with the opinion that the x ram had a coolness factor to it, bt performance wise the stock 4 barrel would beat it in nearly every instance. I would love to drive one just to se the difference

Coolness no doubt! But, the crossram had to make a positive difference on the track at least, don't you think? From my SCCA days, if it didn't make the car faster it was worthless. Nobody gave a crap about coolness. I can't imagine all that engineering, set-up, and added weight only to be out performed by a single 4. I've heard it many times that a single 4bbl will perform better than a 2x4bbl in most cases and I believe that to be true for the street but, with the right combination and tuning, that crossram HAS to do something more...Curious.

I believe what they were alluding to in the article was if you were at the track and in that high rpm band most of time then you would benefit from the x ram. On the street/strip the 780 was the way to go.